docs: improve head section (#19673)

docs/1.getting-started/5.seo-meta.md

@@ -7,53 +7,40 @@ description: Improve your Nuxt app's SEO with powerful head config, composables
 
 Improve your Nuxt app's SEO with powerful head config, composables and components.
 
-## App Head
-
-Providing an [app.head](/docs/api/configuration/nuxt-config#head) property in your `nuxt.config.ts` allows you to customize the head for your entire app.
-
-::alert{type=info}
-This method does not allow you to provide reactive data, if you need global reactive data you can use `useHead` in `app.vue`.
-::
-
-Shortcuts are available to make configuration easier: `charset` and `viewport`. You can also provide any of the keys listed below in [Types](#types).
-
-### Defaults
+## Defaults
 
 Out-of-the-box, Nuxt provides sane defaults, which you can override if needed.
 
 - `charset`: `utf-8`
 - `viewport`: `width=device-width, initial-scale=1`
 
-### Example
-
-```ts{}[nuxt.config.ts]
+```ts [nuxt.config.ts]
 export default defineNuxtConfig({
   app: {
     head: {
-      charset: 'utf-16',
-      viewport: 'width=500, initial-scale=1',
-      title: 'My App',
-      meta: [
-        // <meta name="description" content="My amazing site">
-        { name: 'description', content: 'My amazing site.' }
-      ],
+      charset: 'utf-8',
+      viewport: 'width=device-width, initial-scale=1',
     }
   }
 })
 ```
 
-:ReadMore{link="/docs/api/configuration/nuxt-config/#head"}
+Providing an [`app.head`](/docs/api/configuration/nuxt-config#head) property in your [`nuxt.config.ts`](/docs/guide/directory-structure/nuxt.config) allows you to customize the head for your entire app.
 
-## Composable: `useHead`
+::alert{type=info}
+This method does not allow you to provide reactive data. We recommend to use `useHead()` in `app.vue`.
+::
+
+Shortcuts are available to make configuration easier: `charset` and `viewport`. You can also provide any of the keys listed below in [Types](#types).
+
+## `useHead`
 
 The `useHead` composable function allows you to manage your head tags in a programmatic and reactive way,
 powered by [Unhead](https://unhead.harlanzw.com/).
 
 As with all composables, it can only be used with a components `setup` and lifecycle hooks.
 
-### Example
-
-```vue{}[app.vue]
+```vue [app.vue]
 <script setup lang="ts">
 useHead({
   title: 'My App',
@@ -68,10 +55,9 @@ useHead({
 </script>
 ```
 
-::ReadMore{link="/docs/api/composables/use-head"}
-::
+We recommend to take a look at the [`useHead`](/docs/api/composables/use-head) and [`useHeadSafe`](/docs/api/composables/use-head-safe) composables.
 
-## Composable: `useSeoMeta` and `useServerSeoMeta`
+## `useSeoMeta`
 
 The `useSeoMeta` and `useServerSeoMeta` composables let you define your site's SEO meta tags as a flat object with full TypeScript support.
 
@@ -79,11 +65,9 @@ This helps you avoid typos and common mistakes, such as using `name` instead of
 
 In most instances, the meta does not need to be reactive as robots will only scan the initial load. So we recommend using `useServerSeoMeta` as a performance-focused utility that will not do anything (or return a `head` object) on the client.
 
-### Example
+**Simple example:**
 
-#### Simple
-
-```vue{}[app.vue]
+```vue [app.vue]
 <script setup lang="ts">
 useServerSeoMeta({
   title: 'My Amazing Site',
@@ -96,14 +80,13 @@ useServerSeoMeta({
 </script>
 ```
 
-#### Reactive
+**Reactive example:**
 
-When inserting tags that are reactive, for example, from an API request, you should
-use the computed getter syntax, the same as `useHead`.
+When inserting tags that are reactive, for example, from an API request, you should use the computed getter syntax, the same as `useHead`.
 
-```vue{}[app.vue]
+```vue [app.vue]
 <script setup lang="ts">
-const data = useFetch(() => $fetch('/api/example'))
+const { data } = useFetch('/api/example')
 
 useServerSeoMeta({
   ogTitle: () => `${data.value?.title} - My Site`,
@@ -113,8 +96,8 @@ useServerSeoMeta({
 </script>
 ```
 
-::ReadMore{link="https://unhead.harlanzw.com/guide/composables/use-seo-meta"}
-::
+Read more on the [`useSeoMeta`](https://unhead.harlanzw.com/guide/composables/use-seo-meta) composable.
+
 
 ## Components
 
@@ -124,11 +107,9 @@ Because these component names match native HTML elements, it is very important t
 
 `<Head>` and `<Body>` can accept nested meta tags (for aesthetic reasons) but this has no effect on _where_ the nested meta tags are rendered in the final HTML.
 
-### Example
-
 <!-- @case-police-ignore html -->
 
-```vue{}[app.vue]
+```vue [app.vue]
 <script setup>
 const title = ref('Hello World')
 </script>
@@ -204,7 +185,7 @@ It's recommended to use computed getters (`() => {}`) over computed (`computed((
 
 ::
 
-### Title Templates
+### Title Template
 
 You can use the `titleTemplate` option to provide a dynamic template for customizing the title of your site. for example, by adding the name of your site to the title of every page.
 
@@ -240,7 +221,8 @@ useHead({
   script: [
     {
       src: 'https://third-party-script.com',
-      tagPosition: 'bodyClose' // valid options are: 'head' | 'bodyClose' | 'bodyOpen'
+      // valid options are: 'head' | 'bodyClose' | 'bodyOpen'
+      tagPosition: 'bodyClose'
     }
   ]
 })
@@ -249,7 +231,7 @@ useHead({
 
 ## Examples
 
-### Usage With `definePageMeta`
+### With `definePageMeta`
 
 Within your `pages/` directory, you can use `definePageMeta` along with `useHead` to set metadata based on the current route.
 
@@ -280,7 +262,7 @@ useHead({
 
 :ReadMore{link="/docs/guide/directory-structure/pages/#page-metadata"}
 
-### Add Dynamic Title
+### Dynamic Title
 
 In the example below, `titleTemplate` is set either as a string with the `%s` placeholder or as a `function`, which allows greater flexibility in setting the page title dynamically for each route of your Nuxt app:
 
@@ -302,7 +284,7 @@ useHead({
 
 `nuxt.config` is also used as an alternative way of setting the page title. However, `nuxt.config` does not allow the page title to be dynamic. Therefore, it is recommended to use `titleTemplate` in the `app.vue` file to add a dynamic title, which is then applied to all routes of your Nuxt app.
 
-### Add External CSS
+### External CSS
 
 The example below shows how you might enable Google Fonts using either the `link` property of the `useHead` composable or using the `<Link>` component:
 

docs/3.api/1.composables/use-head-safe.md

@@ -4,10 +4,26 @@ description: The recommended way to provide head data with user input.
 
 # `useHeadSafe`
 
-The useHeadSafe composable is a wrapper around the [useHead](/docs/api/composables/use-head) composable that restricts the input to only allow safe values.
+The `useHeadSafe` composable is a wrapper around the [`useHead`](/docs/api/composables/use-head) composable that restricts the input to only allow safe values.
 
-::ReadMore{link="https://unhead.harlanzw.com/guide/composables/use-head-safe"}
-::
+## Usage
+
+You can pass all the same values as `useHead`
+```ts
+useHeadSafe({
+  script: [
+    { id: 'xss-script', innerHTML: 'alert("xss")' }
+  ],
+  meta: [
+    { 'http-equiv': 'refresh', content: '0;javascript:alert(1)' }
+  ]
+})
+// Will safely generate
+// <script id="xss-script"></script>
+// <meta content="0;javascript:alert(1)">
+```
+
+Read more on [unhead documentation](https://unhead.harlanzw.com/guide/composables/use-head-safe).
 
 ## Type
 

docs/3.api/1.composables/use-head.md

@@ -4,10 +4,9 @@ description: useHead customizes the head properties of individual pages of your
 
 # `useHead`
 
-The `useHead` composable function allows you to manage your head tags in a programmatic and reactive way, powered by [Unhead](https://unhead.harlanzw.com/).
+The `useHead` composable function allows you to manage your head tags in a programmatic and reactive way, powered by [Unhead](https://unhead.harlanzw.com/). If the data comes from a user or other untrusted source, we recommend you check out [`useHeadSafe`](/docs/api/composables/use-head-safe)
 
-::ReadMore{link="/docs/getting-started/seo-meta"}
-::
+:ReadMore{link="/docs/getting-started/seo-meta"}
 
 ## Type